Answer:
The ratio is 5:1 or also 5/1
Explanation:
Ratios
Ratios are usually expressed as a:b or as a fraction a/b. Ratios are used to measure the relative times a is in b. For example, a ratio of 7:3 means there are 7 of something for each 3 of other thing.
We are told one T-shirt is sold for every 5 people wh attends a concert and it's required to find the ratio of people (5) to T-shirts sold (1).
The ratio is 5:1 or also 5/1